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Discovering Regularity in Point Clouds of Urban Scenes. I defended my thesis Wednesday the 11th of December 2013. The thesis presents two algorithms for finding regular patterns in 3D images. The abstract to the document follows:< br /> Despite the apparent chaos of the urban environment, cities are actually replete with regularity. From the grid of streets laid out over the earth, to the lattice of windows thrown up into the sky, periodic regularity abounds in the urban scene. Just as salient, though less uniform, are the self-similar branching patterns of trees and vegetation that line streets and fill parks. We propose novel methods for discovering these regularities in 3D range scans acquired by a time-of-flight laser sensor. The applications of this regularity information are broad, and we present two original algorithms. The first exploits the efficiency of the Fourier transform for the real-time detection of periodicity in building facades. Periodic regularity is discovered online by doing a plane sweep across the scene and analyzing the frequency space of each column in the sweep. The simplicity and online nature of this algorithm allow it to be embedded in scanner hardware, making periodicity detection a built-in feature of future 3D cameras. We demonstrate the usefulness of periodicity in view registration, compression, segmentation, and facade reconstruction. The second algorithm leverages the hierarchical decomposition and locality in space of the wavelet transform to find stochastic parameters for procedural models that succinctly describe vegetation. These procedural models facilitate the generation of virtual worlds for architecture, gaming, and augmented reality. The self-similarity of vegetation can be inferred using multi-resolution analysis to discover the underlying branching patterns. We present a unified framework of these tools, enabling the modeling, transmission, and compression of high-resolution, accurate, and immersive 3D images.
Collaboration with Julia Vallera and Color Wheeelz! Signs of intelligence is an intervention in NYC street signs to make them more interesting, educational, playful and fun.
LucidTronix is an open-source hardware, firmware, and software developer. Inspired by DIY culture and the maker movement, we make electronics tutorials and lucid devices.
The Electric Jewels are a set of interactive, wearable electronics. They include massage gloves, drawing bracelets, video helmets and twinkling necklaces. Each jewel is a Printed Circuit Board (PCB) attached to a necklace chain or embedded in soft cloth like felt or velvet. The jewels use joysticks, gyroscopes, accelerometers, and microphones to sense the environment. Some jewels contain LCD screens where little digital drawings can be made. Others have small vibrating motors that provide an invigorating hand massage. The jewels twinkle with LEDs and silkscreen artworks on their surfaces.
Water drips and drops, splish splashy rejoicing. Enjoy it!
These machines are for moving people to move themselves upon.
Artsolete Screens repurposes the LCD cell phone display as a platform for creation. From the human's perspective, the piece is an invitation to broaden our interactions with electronic devices. Often the technologies that we use can be sources of frustration. We feel forced to work with a systems that don't understand the nuances of our desires. Artsolete Screens offers users an opportunity to turn their frustration into creation by engaging with these devices to make fun and insane artworks. From the robots perspective the piece hopes to engage the issue of obsolete technology. Humans blithely discard incredibly intricate circuits when we get rid of old mobile phones or remote controls. These products are the works of thousands of minds and breathtakingly precise manufacturing. Their microscopic architecture is beginning to rival the molecular genius of the natural world in terms of complexity and versatility. And yet we send them to the land fill. Perhaps because of a malfunction but just as often because they are simply too old, have been replaced by newer, more minutely machined, more powerful devices. By taking old phone screens and cash registers out of the garbage dump and morphing them into art making tools this project hopes to revel in the strange promise of obsolete technology, to remind us of the enduring value of crumpled old things.
Line Life Will be at the Maker Faire at the New York Hall of Science September 25th and 26th. Flushing Meadow Park in Queens. Check out the link below! Please Come! LineLife had a wonderful time at the Flux Factory in Long Island City: 39-31 29th St, Queens, NY June 5 - 13 2010! LineLife is a playground for evolving drawings. An interactive installation, LineLife invites the viewer to become an artist by gesturing. Participants wield soft controllers and create virtual and physical drawings. Movements drive drawing robots creating gift-drawings that the participant-artists can keep. Simultaneously, movements are captured by an interactive video environment which displays and stores the gesture as a virtual drawing. As more people interact with the piece a population of drawings accumulates. This population exists in an artificial life environment where drawings evolve, mate and die. Viewers can select two squiggle citizens to procreate and a child squiggle will be born. The child will be a genetic mixture of its parents, inheriting its rhythm, length, curvature, and direction from them. Visitors may also select a virtual drawing from the population of evolved squiggles and have the drawing bots create a physical version on the pad. Virtual city of gestures. Artbots drawings as birth certificates. Evolution towards mathematical elegance and crowdsourced aesthetics.
Various Drawings
Working in Ioannis Stamos' Computer Vision Laboratory I work on problems of symmetry and feature detection in 3D range images.
Self Similar Sketch Facilitator! Online drawing tool for fractals, as well as a squishy physical interface using an accelorometer for fractals. Freeing the the wonderfully dexterous human hand from the insult of the keyboard!